Control method of fault indicator of heavy-duty hybrid vehicle and related device
By determining the fault status in a heavy-duty hybrid vehicle in response to a power-on event, and combining the display of the upper high-voltage state and the engine start-up state control fault indicator, the problem of inaccurate fault indication when the engine is turned off when the vehicle is driven by the electric motor is solved, and more accurate fault indication is achieved.
Patent Information
- Application Number
- CN202411810059.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-03-21
AI Technical Summary
When the engine is turned off when driven by an electric motor, the display of the fault indicator cannot accurately indicate the vehicle failure, resulting in misleading the driver.
The display of the fault indicator is controlled based on these states by determining its fault status in response to power-up of the target vehicle, and obtaining the upper high voltage status and engine start status.
The accuracy of judgment on whether the heavy-duty hybrid vehicle is driven is improved, thereby improving the accuracy of display control of the fault indicator, so that it can accurately indicate whether the vehicle has a fault.
Smart Images
Figure CN119668237A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of vehicle detection technology, and in particular to a control method and related device for a fault indicator of a heavy hybrid vehicle. Background Art
[0002] A hybrid vehicle refers to a vehicle that uses a hybrid power system. For example, the hybrid system may include an electric motor and an internal combustion engine (which is a type of engine). The vehicle can distribute the power of the electric motor and the internal combustion engine in the hybrid system through a special transmission system to provide optimal performance.
[0003] The engine controller of a traditional heavy-duty vehicle, such as a traditional heavy-duty diesel vehicle, can control the display of the fault indicator of the on-board diagnostics system (OBD) based on whether the vehicle has a fault and the engine start status to prompt the driver whether the vehicle has a fault, wherein the engine start status is directly related to whether the traditional heavy-duty vehicle is driven.
[0004] However, heavy-duty hybrid vehicles may be driven by an electric motor with the engine turned off. At this time, the engine start status is no longer related to whether a traditional heavy-duty vehicle is driven. The display of the OBD fault indicator is still controlled based on whether there is a vehicle fault and the engine start status. It is easy for the display of the fault indicator to fail to accurately indicate the vehicle fault, thereby misleading the driver. Summary of the invention
[0005] In view of this, an embodiment of the present application provides a control method and related device for a fault indicator of a heavy-duty hybrid vehicle, the purpose of which is to accurately control the display of the fault indicator of the heavy-duty hybrid vehicle so that it accurately indicates whether the vehicle has a fault.
[0006] In a first aspect, an embodiment of the present application provides a method for controlling a fault indicator of a heavy-duty hybrid vehicle, the method comprising:
[0007] In response to the power-on of the target vehicle, determining a fault state of the target vehicle; the target vehicle is a heavy hybrid vehicle, and the target vehicle includes an engine and an electric motor; the fault state is used to indicate whether the target vehicle has a fault and the fault level when the fault exists;
[0008] Acquiring an upper high-pressure state of the target vehicle and an engine start state of the target vehicle; the upper high-pressure state is used to indicate an activation state of a high-pressure system of the target vehicle;
[0009] Based on the fault state, the upper high pressure state, and the engine start state of the target vehicle, a fault indicator of the target vehicle is controlled to be displayed.
[0010] In a possible implementation method, controlling the fault indicator of the target vehicle to display based on the fault state, the upper high pressure state, and the engine start state of the target vehicle includes:
[0011] If the high-pressure state is that the target vehicle has been powered on, and the engine start state is that the engine of the target vehicle has not been started, the fault indicator is controlled to be displayed based on the fault state of the target vehicle and the high-pressure state.
[0012] In a possible implementation method, controlling the fault indicator to display based on the fault state and the upper high voltage state of the target vehicle includes:
[0013] If the high-voltage state is that the target vehicle has been high-voltage, and the fault state is that the target vehicle has no fault, then the fault indicator is controlled to be turned off;
[0014] If the high-voltage state is that the target vehicle has been powered on, and the fault state is that a fault exists in the target vehicle, the fault indicator is controlled to flash or remain on based on the fault level when the fault exists.
[0015] In a possible implementation method, controlling the fault indicator of the target vehicle to display based on the fault state, the upper high pressure state, and the engine start state of the target vehicle includes:
[0016] If the high pressure state is that the target vehicle is not high pressure, the fault indicator is controlled to be displayed based on the fault state and the engine start state of the target vehicle.
[0017] In a possible implementation method, controlling the fault indicator of the target vehicle to display based on the fault state, the upper high pressure state, and the engine start state of the target vehicle includes:
[0018] If the high-pressure state is that the target vehicle has been high-pressured, and the engine start state is that the engine of the target vehicle has been started, the fault indicator is controlled to be displayed based on the fault state of the target vehicle and the engine start state.
[0019] In a possible implementation method, the method further includes:
[0020] Obtaining the speed of the target vehicle;
[0021] The method of controlling the fault indicator of the target vehicle to display based on the fault state, the upper high pressure state, and the engine start state of the target vehicle includes:
[0022] A fault indicator of the target vehicle is controlled to be displayed based on the fault state of the target vehicle, the upper high pressure state, the vehicle speed of the target vehicle, and the engine start state.
[0023] In a possible implementation method, controlling the fault indicator of the target vehicle to display based on the fault state of the target vehicle, the upper high pressure state, the speed of the target vehicle, and the engine start state includes:
[0024] If the upper high-pressure state is that the target vehicle has been under high pressure, the vehicle speed of the target vehicle is greater than 0, and the engine start state is that the engine of the target vehicle has not been started, then based on the fault state of the target vehicle, the upper high-pressure state and the vehicle speed, the fault indicator is controlled to display.
[0025] In a second aspect, an embodiment of the present application provides a control device for a fault indicator of a heavy hybrid vehicle, the device comprising:
[0026] A fault state determination module is used to determine the fault state of the target vehicle in response to the power-on of the target vehicle; the target vehicle is a heavy hybrid vehicle, and the target vehicle includes an engine and a motor; the fault state is used to indicate whether the target vehicle has a fault and the fault level when the fault exists;
[0027] An upper high-voltage state and engine state acquisition module, used to acquire the upper high-voltage state of the target vehicle and the engine start state of the target vehicle; the upper high-voltage state is used to indicate the activation state of the high-voltage system of the target vehicle;
[0028] A fault indicator control module is used to control the fault indicator of the target vehicle to display based on the fault state, the upper high pressure state and the engine start state of the target vehicle.
[0029] In a third aspect, an embodiment of the present application provides a control device for a fault indicator of a heavy hybrid vehicle, the device comprising a memory and a processor:
[0030] The memory is used to store a computer program and transmit the computer program to the processor;
[0031] The processor is used to execute the computer program so that the device executes the method for controlling the fault indicator of the heavy hybrid vehicle as described in the first aspect.
[0032] In a fourth aspect, an embodiment of the present application provides a heavy-duty hybrid vehicle, the vehicle comprising the control device of the fault indicator of the heavy-duty hybrid vehicle according to the third aspect.
[0033] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed, a device executing the computer program implements the method for controlling a fault indicator of a heavy-duty hybrid vehicle as described in the first aspect above.
[0034] Compared with the prior art, the embodiments of the present application have the following beneficial effects:
[0035] An embodiment of the present application provides a control method and related device for a fault indicator of a heavy-duty hybrid vehicle. In the method, in response to power-on of a target vehicle, the fault state of the target vehicle is first determined; the target vehicle is a heavy-duty hybrid vehicle, and the target vehicle includes an engine and an electric motor; the fault state is used to indicate whether the target vehicle has a fault and the fault level when the fault exists; then the upper high-voltage state of the target vehicle and the engine start state of the target vehicle are obtained, wherein the upper high-voltage state is used to indicate the activation state of the high-voltage system of the target vehicle; then, based on the fault state, the upper high-voltage state and the engine start state of the target vehicle, the fault indicator of the target vehicle is controlled to display.
[0036] In this way, considering that a heavy-duty hybrid vehicle may be driven only by an electric motor, the upper high-voltage state of the target vehicle can be used to indicate the activation state of the high-voltage system of the target vehicle, and the activation state of the high-voltage system can be associated with the driving state of the target vehicle driven by the electric motor. Therefore, the upper high-voltage state and the engine start state of the target vehicle are combined to improve the accuracy of the judgment on whether the heavy-duty hybrid vehicle is driven, thereby improving the control accuracy of the display of the fault indicator of the heavy-duty hybrid vehicle, so that it can accurately indicate whether the vehicle has a fault, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] In order to more clearly illustrate the technical solutions in this embodiment or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0038] Figure 1 An application scenario of a method for controlling a fault indicator of a heavy-duty hybrid vehicle provided in an embodiment of the present application;
[0039] Figure 2A flow chart of a method for controlling a fault indicator of a heavy-duty hybrid vehicle provided in an embodiment of the present application;
[0040] Figure 3 A schematic diagram of controlling a fault indicator of a target vehicle to display provided in an embodiment of the present application;
[0041] Figure 4 A schematic diagram of another method of controlling a fault indicator of a target vehicle to display provided in an embodiment of the present application;
[0042] Figure 5 A schematic diagram of a method for controlling a fault indicator of a heavy-duty hybrid vehicle provided in an embodiment of the present application;
[0043] Figure 6 A schematic structural diagram of a control device for a fault indicator of a heavy-duty hybrid vehicle provided in an embodiment of the present application. DETAILED DESCRIPTION
[0044] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0045] For example, a hybrid system may include two engines and an internal combustion engine, which allows the power of the internal combustion engine and the power of the electric motor to be mixed in different proportions under different operating conditions. One electric motor can be used to directly drive the vehicle, and the other electric motor can be used to start the internal combustion engine and recover braking energy, so that the internal combustion engine can drive the vehicle. Therefore, a hybrid vehicle may be driven only by the electric motor, that is, the vehicle is already driven, such as when starting or driving, and the engine is still in a stopped state (that is, not started).
[0046] At present, the existing fault indicator control method is: based on whether the vehicle has a fault and the engine start state to control the display of the OBD fault indicator. It has been found that heavy hybrid vehicles still control the display of the OBD fault indicator based on this, which is prone to display errors.
[0047] For example, for a traditional heavy-duty vehicle, if there is no fault and the engine is started, the OBD fault indicator will go out to indicate that the vehicle has no fault. If there is a fault and the engine is started, the OBD fault indicator will flash or stay on to indicate that there is a fault. However, if a heavy-duty hybrid vehicle has no fault and is driven only by the electric motor, and the engine is not started, the OBD fault indicator will still flash or stay on to indicate that there is a fault, which will cause the driver to misjudge.
[0048] Based on this, in order to solve the above problems, an embodiment of the present application provides a control method and related devices for a fault indicator of a heavy-duty hybrid vehicle. In the method, in response to the power-on of a target vehicle, the fault state of the target vehicle is first determined; the target vehicle is a heavy-duty hybrid vehicle, and the target vehicle includes an engine and an electric motor; the fault state is used to indicate whether there is a fault in the target vehicle and the fault level when a fault exists; then the upper high-voltage state of the target vehicle and the engine start state of the target vehicle are obtained, wherein the upper high-voltage state is used to indicate the activation state of the high-voltage system of the target vehicle; then, based on the fault state, the upper high-voltage state and the engine start state of the target vehicle, the fault indicator of the target vehicle is controlled to display.
[0049] In this way, considering that a heavy-duty hybrid vehicle may be driven only by an electric motor, the upper high-voltage state of the target vehicle can be used to indicate the activation state of the high-voltage system of the target vehicle, and the activation state of the high-voltage system can be associated with the start-up state of the target vehicle driven by an electric motor. Therefore, the upper high-voltage state of the target vehicle and the engine start-up state are combined to improve the accuracy of the judgment on whether the heavy-duty hybrid vehicle is driven, thereby improving the control accuracy of the display of the fault indicator of the heavy-duty hybrid vehicle, so that it can accurately indicate whether the vehicle has a fault, thereby improving the user experience.
[0050] For example, the embodiments of the present application can be applied to Figure 1 In the scenario shown. The scenario includes a target vehicle 101, and the target vehicle 101 includes an engine controller 102 and a vehicle controller 103. The vehicle controller 103 can obtain the upper high voltage state of the target vehicle 101 and send it to the engine controller 102. The engine controller 102 can use the implementation method provided in the embodiment of the present application to control the fault indicator of the heavy hybrid vehicle.
[0051] First, in the above application scenario, although the actions of the implementation provided by the embodiment of the present application are described as being executed by the engine controller 102, the embodiment of the present application is not limited in terms of the execution subject, as long as the actions disclosed in the implementation provided by the embodiment of the present application are executed. For example, the execution subject of the embodiment of the present application may also be other controllers of the target vehicle 101.
[0052] Secondly, the above scenario is only an example scenario provided by the embodiment of the present application, and the embodiment of the present application is not limited to this scenario.
[0053] The specific implementation of the control method of the fault indicator of the heavy-duty hybrid vehicle and the related device in the embodiment of the present application will be described in detail below with reference to the accompanying drawings by way of embodiments.
[0054] See also Figure 2 , which is a flow chart of a method for controlling a fault indicator of a heavy hybrid vehicle provided in an embodiment of the present application, combined with Figure 2 As shown, it may specifically include:
[0055] S201: In response to powering on a target vehicle, determining a fault state of the target vehicle.
[0056] Wherein, the target vehicle is a heavy-duty hybrid vehicle, and the target vehicle includes an engine and an electric motor; the fault state is used to indicate whether the target vehicle has a fault and the fault level when a fault exists.
[0057] Powering on the target vehicle means that the driver starts the target vehicle by means of a key, a button or a remote control to prepare it for driving.
[0058] After the target vehicle is powered on, various electronic controller units such as the engine controller and vehicle controller can start working.
[0059] In some embodiments, the engine controller can detect whether various sensors and actuators of the target vehicle have abnormalities, such as whether the value of the sensor exceeds the normal range and whether the actuator is working. If it is determined that no abnormality has occurred, it can be determined that the target vehicle is in a fault-free state and there is no fault; if it is determined that an abnormality has occurred, it can be determined that the target vehicle is in a faulty state and a fault has occurred, and the fault level can be determined based on the abnormality that has occurred.
[0060] S202: Acquire the upper high pressure state of the target vehicle and the engine start state of the target vehicle.
[0061] The high-pressure state is used to indicate the activation state of the high-pressure system of the target vehicle. The high-pressure state of the target vehicle is that the target vehicle has been high-pressured, indicating that its high-pressure system has been activated; the high-pressure state of the target vehicle is that the target vehicle has not been high-pressured, indicating that its high-pressure system has not been activated.
[0062] The high voltage system is activated, indicating that the electric motor is preparing to work or has started to work, indicating that the target vehicle has started to prepare to drive, or has already driven.
[0063] For example, the high voltage system may include a vehicle controller, a battery controller, a motor controller, and a high voltage to low voltage controller.
[0064] In some embodiments, the vehicle controller can first determine its own activation status, and can communicate with other high-voltage components in the high-voltage system through a controller area network bus, a local connection network bus, etc. After activation, other high-voltage components can send their own activation status to the vehicle controller through the bus. Then the vehicle controller can send the activation status of each high-voltage component (including itself) to the engine controller. If the engine controller determines that each high-voltage component has been activated, it can be determined that the high-voltage state of the target vehicle is already high-voltage; on the contrary, if the engine controller determines that each high-voltage component is not activated, it can be determined that the high-voltage state of the target vehicle is not high-voltage.
[0065] The engine start status is that the engine of the target vehicle is not started, indicating that the target vehicle is not driven, or the target vehicle is not driven by the engine, that is, at this time the drive of the target vehicle only relies on the motor to start; the engine start status is that the engine of the target vehicle is started, indicating that the target vehicle relies on the engine to drive, or the target vehicle relies on the engine and the motor to drive.
[0066] In some embodiments, the engine controller can detect the position and speed of the engine crankshaft through a crankshaft position sensor. For example, when the engine is driven to rotate, the crankshaft position sensor will send a signal to the engine controller, indicating that the engine is trying to start. Then, when the speed of the crankshaft stabilizes within a specific range, the engine controller can determine that the engine has started. On the contrary, if the engine does not receive the signal sent by the crankshaft position sensor, it means that the engine has not started.
[0067] S203: Based on the fault state, the upper high pressure state, and the engine start state of the target vehicle, the fault indicator of the target vehicle is controlled to display.
[0068] In some embodiments, the high-voltage state can be represented as PT_ready, PT_ready=1 indicates that the target vehicle has been high-voltage, and PT_ready=0 indicates that the target vehicle has not been high-voltage; the engine start state can be represented as Eng_st, Eng_st=1 indicates that the engine is started, and Eng_st=0 indicates that the engine is not started. For ease of understanding, the following can take this as an example to continue to explain the control method of the fault indicator of a heavy-duty hybrid vehicle provided in an embodiment of the present application.
[0069] In a possible implementation, S203 may specifically include: if the upper high-pressure state is that the target vehicle has already applied high pressure, and the engine start state is that the engine of the target vehicle has not been started, then based on the fault state of the target vehicle and the upper high-pressure state, controlling the fault indicator to display.
[0070] In this case, the target vehicle has high voltage, PT_ready=1, the engine is not started, Eng_st=0, indicating that the target vehicle is already moving and is only driven by an electric motor. The fault indicator of the target vehicle can be controlled to display according to whether there is a fault in the target vehicle and the fault level when the fault occurs.
[0071] It should be noted that, in some embodiments, the fault indicator of the target vehicle may be displayed in the same manner as the fault indicator of a traditional heavy vehicle when the engine is started, depending on whether a fault exists and the fault level when a fault exists.
[0072] In this way, on the one hand, it can avoid the problem of incorrect display of the fault indicator light caused by the target vehicle being driven only by the electric motor and the engine controller judging whether the vehicle is driven only based on the engine start status when the engine is not started. On the other hand, there is no need to significantly change the display mode of the fault indicator light, which is conducive to maintaining the stability of the OBD.
[0073] In one possible implementation, "if the upper high-pressure state is that the target vehicle has already applied high pressure, and the engine start state is that the engine of the target vehicle has not started, then based on the fault state of the target vehicle and the upper high-pressure state, the fault indicator is controlled to be displayed", may include: if the upper high-pressure state is that the target vehicle has already applied high pressure, the engine start state is that the engine of the target vehicle has not started, and the fault state is that the target vehicle has no fault, then the fault indicator is controlled to be extinguished; if the upper high-pressure state is that the target vehicle has already applied high pressure, the engine start state is that the engine of the target vehicle has not started, and the fault state is that the target vehicle has a fault, then based on the fault level when the fault exists, the fault indicator is controlled to flash or remain on.
[0074] As an example, see Figure 3 , which is a schematic diagram of controlling the display of a fault indicator when there is no fault in a target vehicle provided by an embodiment of the present application. Figure 4 , which is a schematic diagram of controlling the display of a fault indicator when a target vehicle has a fault, provided in an embodiment of the present application. Next, in combination with Figure 3 and Figure 4 Continue with the explanation.
[0075] In some embodiments, Figure 3 As shown in (a), when the target vehicle is already on high voltage, PT_ready=1, the engine is not started, Eng_st=0, and the fault state is that the target vehicle has no fault, the fault indicator can be controlled to be extinguished.
[0076] In some embodiments, when the target vehicle is already high voltage, PT_ready=1, the engine is not started, Eng_st=0, and the fault state is that the target vehicle has a fault, no matter what the fault level is, such as Figure 4 As shown in (e), the fault indicator light can be controlled to be always on; or, in this case, as Figure 4 As described in (f), the fault indicator light can be controlled to flash, for example, to light up for 15 seconds and then go out.
[0077] In a possible implementation, S203 may specifically include: if the high-voltage state is that the target vehicle is not high-voltage, then based on the fault state of the target vehicle and the engine start state, controlling the fault indicator to display.
[0078] In this case, the target vehicle is not on high voltage, PT_ready=0, indicating that the target vehicle's motor is not started, the target vehicle is not driven, or the target vehicle is only driven by the engine. The fault indicator of the target vehicle can be controlled and displayed according to whether there is a fault in the target vehicle, the fault level when the target vehicle has a fault, and whether the engine is started.
[0079] It should be noted that, in some embodiments, the fault indicator of the target vehicle in this case may be displayed in the same manner as the fault indicator of a traditional heavy vehicle.
[0080] It should be emphasized that in the above situation, the target vehicle is not on high voltage and the engine is started. This situation will occur in the target vehicle whose engine does not rely on the electric motor to start. If the target vehicle's engine needs to rely on the electric motor to start, this situation will not occur.
[0081] In some embodiments, if the target vehicle is not on high voltage, PT_ready=0, the engine is not started, Eng_st=0, and the fault state is that the target vehicle has no fault, the fault indicator can be controlled to flash.
[0082] Next, in conjunction with the fault indicator test, whether it can light up normally, and whether the monitoring component of the target vehicle (used to detect whether the target vehicle has a fault) is accurately ready, the flashing modes of the fault indicator in this case are introduced respectively.
[0083] like Figure 3As shown in (b), when the fault indicator test itself can light up normally and the monitoring components of the target vehicle are ready, the fault indicator will first light up for 5 seconds, indicating that the fault indicator test itself can light up normally, and then it can be off for 10 seconds, and then light up for 5 seconds, indicating that the monitoring components of the target vehicle are ready, and then after an interval of 5 seconds, when the target vehicle is not on high voltage, the engine is not started, and there is no fault, the fault indicator can light up for 1 second, go off for 5 seconds, and then light up for 1 second, and flash in this cycle.
[0084] like Figure 3 As shown in (c), when the fault indicator test itself can light up normally and the monitoring component of the target vehicle is not ready, the fault indicator will first light up for 5 seconds, indicating that the fault indicator test itself can light up normally, and then it can be off for 10 seconds, flashing 5 times within 5 seconds, indicating that the monitoring component of the target vehicle is not ready, and then after being off for 5 seconds, when the target vehicle is not on high voltage, the engine is not started, and there is no fault, the fault indicator can be on for 1 second, off for 5 seconds, and then on for 1 second, and flash in this cycle.
[0085] In addition, the fault indicator light may go out in this case, such as Figure 3 As shown in (d), when the fault indicator test itself cannot light up normally, the fault indicator continues to not light up, indicating that the fault indicator is faulty.
[0086] In some embodiments, if the target vehicle is not on high voltage, PT_ready=0, the engine is started, Eng_st=1, and the fault state is that the target vehicle has no fault, the fault indicator can be controlled to be extinguished, such as Figure 3 As shown in (a).
[0087] In some embodiments, the target vehicle is not on high voltage, PT_ready=0, the engine is not started, Eng_st=0, and the fault state is that the target vehicle has a fault, then the fault indicator can be controlled to flash according to the fault level.
[0088] Exemplarily, the fault levels may include activation mode 2, activation mode 3, and activation mode 4, with the fault levels increasing in sequence.
[0089] like Figure 4 As shown in (g) and (j), when the fault of the target vehicle is activation mode 4, the fault indicator can light up normally during the test itself, and after determining whether the monitoring components of the target vehicle are ready or not ready (the flashing of the fault indicator at this stage can be seen in the above introduction, which will not be repeated here, and the same applies to the examples below), the fault indicator can be off for 5 seconds and then remain on.
[0090] like Figure 4As shown in (h) and (k), when the fault of the target vehicle is activation mode 3, the fault indicator can light up normally after testing itself, and after determining that the monitoring components of the target vehicle are ready or not ready, the fault indicator can be off for 5 seconds, flash 3 times within 5 seconds, off for another 5 seconds, and then flash 3 times within 5 seconds, and so on.
[0091] like Figure 4 As shown in (i), when the fault of the target vehicle is activation mode 2, the fault indicator can light up normally after testing itself and after determining that the monitoring components of the target vehicle are ready, the fault indicator can be extinguished for 5 seconds, flash twice within 3 seconds, extinguished for another 5 seconds, and flash twice within 3 seconds, and repeat this flashing cycle.
[0092] In some embodiments, the target vehicle is not on high voltage, PT_ready = 0, the engine is started, Eng_st = 1, and the fault state is that the target vehicle has a fault, then the fault indicator can be controlled to be always on according to the fault level, such as Figure 4 Alternatively, the fault indicator is controlled to flash, for example, it stays on for a period of time and then goes off, such as Figure 4 As shown in (f), it can stay on for 15 seconds and then go off.
[0093] In a possible implementation, S203 may specifically include: if the high-pressure state is that the target vehicle has high pressure, and the engine start state is that the engine of the target vehicle has been started, then based on the fault state of the target vehicle and the engine start state, controlling the fault indicator to display.
[0094] In this case, the target vehicle has high voltage, PT_ready=1, the engine has been started, Eng_st=1, indicating that the target vehicle is already moving and is only driven by the engine (for example, the engine of the target vehicle is started by an electric motor), or it is driven by both the engine and the electric motor. The fault indicator of the target vehicle can be controlled to display based on whether the engine has been started, whether there is a fault in the target vehicle, and the fault level when the target vehicle has a fault.
[0095] In some embodiments, Figure 3 As shown in (a), when the target vehicle is already on high voltage, PT_ready=1, the engine is already started, Eng_st=1, and the fault state is that the target vehicle has no fault, the fault indicator can be controlled to be extinguished.
[0096] In some embodiments, when the target vehicle is already high voltage, PT_ready=1, the engine is already started, Eng_st=1, and the fault state is that the target vehicle has a fault, no matter what the fault level is, such as Figure 4 As shown in (e), the fault indicator light can be controlled to be always on; or, in this case, as Figure 4 As described in (f), the fault indicator light can be turned on for 15 seconds and then off.
[0097] As an example, see Figure 5 , which is a schematic diagram of a control method for a fault indicator of a heavy hybrid vehicle provided by an embodiment of the present application. Figure 5 As shown, the target vehicle is powered on, the engine controller is started, and the engine controller obtains the fault status, upper high voltage status and engine start status of the target vehicle; then the target vehicle controls the fault indicator of the target vehicle to display based on the fault status, the upper high voltage status and the engine start status of the target vehicle.
[0098] For example, Figure 5 As shown, if the target vehicle does not have a fault, and the high-voltage state of the target vehicle is not on high voltage, and the engine start state is that the engine is not started, then the fault indicator of the OBD is controlled to flash in the manner described above; if the target vehicle does not have a fault, and the high-voltage state of the target vehicle is that high voltage is applied and / or the engine start state is that the engine is started, then the fault indicator of the OBD is controlled to be off; if the target vehicle has a fault, and the high-voltage state of the target vehicle is not on high voltage, and the engine start state is that the engine is not started, then the fault indicator of the OBD is controlled to flash according to the fault level; if the target vehicle has a fault, and the high-voltage state of the target vehicle is that high voltage is applied and / or the engine start state is that the engine is started, then the OBD fault indicator is controlled to be always on or to be off after being on for a period of time.
[0099] In a possible implementation, the method for controlling the fault indicator of the heavy hybrid vehicle may further include: acquiring the speed of the target vehicle.
[0100] In some embodiments, the vehicle body controller may display the speed of the target vehicle in real time on the instrument of the target vehicle, and the instrument of the target vehicle may then send the speed to the engine controller.
[0101] Accordingly, S203 may specifically include: controlling a fault indicator of the target vehicle to display based on the fault state of the target vehicle, the upper high pressure state, the speed of the target vehicle, and the engine start state.
[0102] In this way, considering that the vehicle speed is more closely related to whether the target vehicle is driven, the upper high-voltage state, engine start state and vehicle speed of the target vehicle are combined to further improve the accuracy of judging whether the heavy-duty hybrid vehicle is driven, thereby improving the control accuracy of the display of the fault indicator of the heavy-duty hybrid vehicle.
[0103] In one possible implementation, the fault indicator of the target vehicle is controlled to be displayed based on the fault state, the upper high-voltage state, the speed of the target vehicle and the engine start state of the target vehicle. Specifically, it may include: if the upper high-voltage state is that the target vehicle has been under high voltage, the speed of the target vehicle is greater than 0, and the engine start state is that the engine of the target vehicle has not been started, then based on the fault state, the upper high-voltage state and the speed of the target vehicle, the fault indicator is controlled to be displayed.
[0104] In this case, the target vehicle is already on high voltage, PT_ready=1, the engine is not started, Eng_st=0, and the vehicle speed is greater than 0, indicating that the target vehicle is already moving and is only driven by the engine. The fault indicator of the target vehicle can be controlled to display according to whether there is a fault in the target vehicle and the fault level when the target vehicle has a fault.
[0105] It should be noted that, in some embodiments, the fault indicator of the target vehicle in this case can also be displayed in the manner of controlling the fault indicator according to whether a fault exists and the fault level when the fault exists, in accordance with the fault indicator of a traditional heavy vehicle when the engine is started. For details, please refer to the introduction of the relevant content above, which will not be repeated here.
[0106] The above are some specific implementations of the method for controlling the fault indicator of a heavy-duty hybrid vehicle provided in the embodiments of the present application. Based on this, the present application also provides a corresponding control device for the fault indicator of a heavy-duty hybrid vehicle. The control device for the fault indicator of a heavy-duty hybrid vehicle provided in the embodiments of the present application will be introduced below from the perspective of functional modularization.
[0107] See also Figure 6 , which is a schematic diagram of the structure of a control device for a fault indicator of a heavy-duty hybrid vehicle provided in an embodiment of the present application. The control device 600 for the fault indicator of a heavy-duty hybrid vehicle may include:
[0108] A fault state determination module 610 is used to determine a fault state of the target vehicle in response to the target vehicle being powered on; the target vehicle is a heavy hybrid vehicle, and the target vehicle includes an engine and a motor; the fault state is used to indicate whether the target vehicle has a fault and the fault level when a fault exists;
[0109] The upper high-pressure state and engine state acquisition module 620 is used to acquire the upper high-pressure state of the target vehicle and the engine start state of the target vehicle; the upper high-pressure state is used to indicate the activation state of the high-pressure system of the target vehicle;
[0110] The fault indicator control module 630 is used to control the fault indicator of the target vehicle to display based on the fault state, the upper high pressure state and the engine start state of the target vehicle.
[0111] As an implementation manner, the fault indicator control module 630 may specifically include:
[0112] The first fault indicator control unit is used to control the fault indicator to display based on the fault state and the upper high pressure state of the target vehicle if the upper high pressure state is that the target vehicle has already had high pressure, and the engine start state is that the engine of the target vehicle has not been started.
[0113] As an implementation manner, the first fault indicator control unit may be specifically used for:
[0114] If the high-voltage state is that the target vehicle has been high-voltage, and the fault state is that the target vehicle has no fault, then the fault indicator is controlled to be turned off;
[0115] If the high-voltage state is that the target vehicle has been powered on, and the fault state is that a fault exists in the target vehicle, the fault indicator is controlled to flash or remain on based on the fault level when the fault exists.
[0116] As an implementation manner, the fault indicator control module 630 may specifically include:
[0117] The second fault indicator control unit is used to control the fault indicator to display based on the fault state of the target vehicle and the engine start state if the high pressure state is that the target vehicle is not high pressure.
[0118] As an implementation manner, the fault indicator control module 630 may specifically include:
[0119] A third fault indicator control unit is used to control the fault indicator to display based on the fault state and the engine start state of the target vehicle if the high-voltage state is that the target vehicle has been high-voltage, and the engine start state is that the engine of the target vehicle has been started.
[0120] As an implementation manner, the control device 600 of the fault indicator of the heavy hybrid vehicle may further include:
[0121] A vehicle speed acquisition module, used to acquire the speed of the target vehicle;
[0122] Accordingly, the fault indicator control module 630 may specifically include:
[0123] A fourth fault indicator control unit is used to control the fault indicator of the target vehicle to display based on the fault state of the target vehicle, the upper high pressure state, the speed of the target vehicle and the engine start state.
[0124] As an implementation manner, the fourth fault indicator control unit may be specifically used for:
[0125] If the upper high-pressure state is that the target vehicle has been under high pressure, the vehicle speed of the target vehicle is greater than 0, and the engine start state is that the engine of the target vehicle has not been started, then based on the fault state of the target vehicle, the upper high-pressure state and the vehicle speed, the fault indicator is controlled to display.
[0126] The embodiments of the present application also provide a corresponding control device for a fault indicator of a heavy-duty hybrid vehicle, a heavy-duty hybrid vehicle, and a computer-readable storage medium for implementing the solution provided in the embodiments of the present application.
[0127] Among them, the control device of the fault indicator of the heavy-duty hybrid vehicle includes a memory and a processor, the memory is used to store a computer program, and the processor is used to execute the computer program so that the device executes the control method of the fault indicator of the heavy-duty hybrid vehicle described in any embodiment of the present application.
[0128] In some embodiments, the control device of the fault indicator of the heavy hybrid vehicle may be an engine controller of the target vehicle.
[0129] The heavy-duty hybrid vehicle comprises a control device for a fault indicator of the heavy-duty hybrid vehicle.
[0130] The computer-readable storage medium stores a computer program. When the computer program is executed, a device executing the computer program implements the xxxx method described in any embodiment of the present application.
[0131] The "first" and "second" in the names such as "first" and "second" (if any) mentioned in the embodiments of the present application are only used as name identifiers and do not represent the first or second in order.
[0132] Through the description of the above implementation methods, it can be known that those skilled in the art can clearly understand that all or part of the steps in the above-mentioned embodiment method can be implemented by means of software plus a general hardware platform. Based on such an understanding, the technical solution of the present application can be embodied in the form of a software product, which can be stored in a readable storage medium, such as a read-only memory (ROM) / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network communication device such as a router) to execute the methods described in each embodiment of the present application or some parts of the embodiments.
[0133] It should be noted that each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment. The device embodiment described above is merely schematic, in which the unit described as a separate component may or may not be physically separated, and the component prompted as a unit may or may not be a physical unit, that is, it may be located in one place, or it may be distributed on multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative work.
[0134] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.
Claims
1. A method for controlling a fault indicator of a heavy hybrid vehicle, characterized in that: The method comprises: In response to the power-on of the target vehicle, determining a fault state of the target vehicle; the target vehicle is a heavy hybrid vehicle, and the target vehicle includes an engine and an electric motor; the fault state is used to indicate whether the target vehicle has a fault and the fault level when the fault exists; Acquiring an upper high-pressure state of the target vehicle and an engine start state of the target vehicle; the upper high-pressure state is used to indicate an activation state of a high-pressure system of the target vehicle; Based on the fault state, the upper high pressure state, and the engine start state of the target vehicle, a fault indicator of the target vehicle is controlled to be displayed.
2. The method according to claim 1, characterized in that The method of controlling the fault indicator of the target vehicle to display based on the fault state, the upper high pressure state, and the engine start state of the target vehicle includes: If the high-pressure state is that the target vehicle has been powered on, and the engine start state is that the engine of the target vehicle has not been started, the fault indicator is controlled to be displayed based on the fault state of the target vehicle and the high-pressure state.
3. The method according to claim 2, characterized in that The controlling the fault indicator to display based on the fault state and the upper high voltage state of the target vehicle comprises: If the high-voltage state is that the target vehicle has been high-voltage, and the fault state is that the target vehicle has no fault, then the fault indicator is controlled to be turned off; If the high-voltage state is that the target vehicle has been powered on, and the fault state is that a fault exists in the target vehicle, the fault indicator is controlled to flash or remain on based on the fault level when the fault exists.
4. The method according to claim 1, characterized in that: The controlling the fault indicator of the target vehicle to display based on the fault state, the upper high pressure state, and the engine start state of the target vehicle comprises: If the high pressure state is that the target vehicle is not high pressure, the fault indicator is controlled to be displayed based on the fault state and the engine start state of the target vehicle.
5. The method according to claim 1, characterized in that The controlling the fault indicator of the target vehicle to display based on the fault state, the upper high pressure state, and the engine start state of the target vehicle comprises: If the high-pressure state is that the target vehicle has been high-pressured, and the engine start state is that the engine of the target vehicle has been started, the fault indicator is controlled to be displayed based on the fault state of the target vehicle and the engine start state.
6. The method according to claim 1, characterized in that The method further comprises: Obtaining the speed of the target vehicle; The controlling the fault indicator of the target vehicle to display based on the fault state, the upper high pressure state, and the engine start state of the target vehicle comprises: A fault indicator of the target vehicle is controlled to be displayed based on the fault state of the target vehicle, the upper high pressure state, the vehicle speed of the target vehicle, and the engine start state.
7. The method according to claim 6, characterized in that The controlling the fault indicator of the target vehicle to display based on the fault state of the target vehicle, the upper high pressure state, the speed of the target vehicle and the engine start state includes: If the upper high-pressure state is that the target vehicle has been under high pressure, the vehicle speed of the target vehicle is greater than 0, and the engine start state is that the engine of the target vehicle has not been started, then based on the fault state of the target vehicle, the upper high-pressure state and the vehicle speed, the fault indicator is controlled to display.
8. A control device for a fault indicator of a heavy hybrid vehicle, characterized in that: The device comprises: A fault state determination module is used to determine the fault state of the target vehicle in response to the power-on of the target vehicle; the target vehicle is a heavy hybrid vehicle, and the target vehicle includes an engine and a motor; the fault state is used to indicate whether the target vehicle has a fault and the fault level when the fault exists; An upper high-voltage state and engine state acquisition module, used to acquire the upper high-voltage state of the target vehicle and the engine start state of the target vehicle; the upper high-voltage state is used to indicate the activation state of the high-voltage system of the target vehicle; A fault indicator control module is used to control the fault indicator of the target vehicle to display based on the fault state, the upper high pressure state and the engine start state of the target vehicle.
9. A control device for a fault indicator of a heavy hybrid vehicle, characterized in that: The device comprises a memory and a processor: The memory is used to store a computer program and transmit the computer program to the processor; The processor is used to execute the computer program so that the device performs the steps of the method for controlling a fault indicator of a heavy hybrid vehicle according to any one of claims 1 to 7.
10. A heavy-duty hybrid vehicle, characterized in that: The vehicle includes the control device of the fault indicator for a heavy hybrid vehicle according to claim 9.